SANS study of mixed cholesteric cellulose nanocrystal – gold nanorod suspensions | Zendy

Jonas Van Rie | Zendy; Guillermo GonzálezRubio | Zendy; Sugam Kumar | Zendy; Christina Schütz | Zendy; Joachim Kohlbrecher | Zendy; Michèle Vanroelen | Zendy; Tom Van Gerven | Zendy; Olivier Deschaume | Zendy; Carmen Bartic | Zendy; Luis M. LizMarzán | Zendy; Germán Salazar-Álvarez | Zendy; Wim Thielemans | Zendy

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SANS study of mixed cholesteric cellulose nanocrystal – gold nanorod suspensions

Author(s) -

Jonas Van Rie,

Guillermo GonzálezRubio,

Sugam Kumar,

Christina Schütz,

Joachim Kohlbrecher,

Michèle Vanroelen,

Tom Van Gerven,

Olivier Deschaume,

Carmen Bartic,

Luis M. LizMarzán,

Germán Salazar-Álvarez,

Wim Thielemans

Publication year - 2020

Publication title -

chemical communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.837

H-Index - 333

eISSN - 1364-548X

pISSN - 1359-7345

DOI - 10.1039/d0cc04845c

Subject(s) - nanorod , liquid crystal , isotropy , materials science , nanocrystal , anisotropy , phase (matter) , cellulose , chemical engineering , nanotechnology , optics , chemistry , organic chemistry , optoelectronics , physics , engineering

Self-assembly of cellulose nanocrystals (CNCs) doped with anisotropic gold nanorods (AuNRs) was studied by small-angle neutron scattering. Correlation distances and structured domains were analysed to determine the influence of CNC and AuNR concentration on structuring. The transfer of the nematic structure of CNCs to AuNRs is explained in terms of an entropy-driven evolution from an isotropic to a cholesteric phase, with small nematic domains already present in the "isotropic" phase in equilibrium with the chiral nematic phase.

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